package cn.edu.dgut.gy.lab2demo.demo;


import org.springframework.boot.CommandLineRunner;
import org.springframework.core.env.Environment;

import java.util.Objects;

@SuppressWarnings("unused")
class CustomCommandLineRunner implements CommandLineRunner {
    Environment env;
    public CustomCommandLineRunner(Environment env){
        this.env=env;
    }
    @Override
    public  void run(String... args){
        System.out.println("利用Spring Boot自动配置的CommandLineRunner");
        System.out.println("生成一个随机字符串".concat(Objects.requireNonNull(env.getProperty("random."))));

    }
}
